 | Human | PDE9A | 4qge | B | | N~2~-(1-cyclopentyl-4-oxo-4,7-dihydro-1H-pyrazolo[3,4-d]pyrimidin-6-yl)-N-(4-methoxyphenyl)-D-alaninamide | |  |
 | Human | PDE9A | 4y86 | A | | 6-{[(1S)-1-(4-chlorophenyl)ethyl]amino}-1-cyclopentyl-1,5-dihydro-4H-pyrazolo[3,4-d]pyrimidin-4-one | |  |
 | Human | PDE9A | 4y86 | B | | 6-{[(1R)-1-(4-chlorophenyl)ethyl]amino}-1-cyclopentyl-1,5-dihydro-4H-pyrazolo[3,4-d]pyrimidin-4-one | |  |
 | Human | PDE9A | 4y87 | A | | 6-{[(1R)-1-(4-chlorophenyl)ethyl]amino}-1-cyclopentyl-1,5-dihydro-4H-pyrazolo[3,4-d]pyrimidin-4-one | |  |
 | Human | PDE9A | 4y87 | B | | 6-{[(1R)-1-(4-chlorophenyl)ethyl]amino}-1-cyclopentyl-1,5-dihydro-4H-pyrazolo[3,4-d]pyrimidin-4-one | |  |
 | Human | PDE9A | 4y8c | A | | 6-{[(1S)-1-(4-chlorophenyl)ethyl]amino}-1-cyclopentyl-1,5-dihydro-4H-pyrazolo[3,4-d]pyrimidin-4-one | |  |
 | Human | PDE9A | 4y8c | B | | 6-{[(1S)-1-(4-chlorophenyl)ethyl]amino}-1-cyclopentyl-1,5-dihydro-4H-pyrazolo[3,4-d]pyrimidin-4-one | |  |
 | Human | PDE9A | 6a3n | A | | 1-cyclopentyl-6-({(2R)-1-[(3S)-3-fluoropyrrolidin-1-yl]-1-oxopropan-2-yl}amino)-1,5-dihydro-4H-pyrazolo[3,4-d]pyrimidin-4-one | |  |
 | Human | PDE9A | 6a3n | B | | 1-cyclopentyl-6-({(2R)-1-[(3S)-3-fluoropyrrolidin-1-yl]-1-oxopropan-2-yl}amino)-1,5-dihydro-4H-pyrazolo[3,4-d]pyrimidin-4-one | |  |
 | Leishmania | PDEB1 | 2r8q | A | | 3-ISOBUTYL-1-METHYLXANTHINE | |  |
 | Leishmania | PDEB1 | 2r8q | B | | 3-ISOBUTYL-1-METHYLXANTHINE | |  |
 | Trypanosoma brucei | PDEB1 | 4i15 | A | | | |  |
 | Trypanosoma brucei | PDEB1 | 4i15 | B | | | |  |
 | Trypanosoma brucei | PDEB1 | 4phl | A | A | 3-(CYCLOPENTYLOXY)-N-(3,5-DICHLOROPYRIDIN-4-YL)-4-METHOXYBENZAMIDE | |  |
 | Trypanosoma brucei | PDEB1 | 4phl | A | B | 3-(CYCLOPENTYLOXY)-N-(3,5-DICHLOROPYRIDIN-4-YL)-4-METHOXYBENZAMIDE | |  |
 | Trypanosoma brucei | PDEB1 | 4phl | B | A | 3-(CYCLOPENTYLOXY)-N-(3,5-DICHLOROPYRIDIN-4-YL)-4-METHOXYBENZAMIDE | |  |
 | Trypanosoma brucei | PDEB1 | 4phl | B | B | 3-(CYCLOPENTYLOXY)-N-(3,5-DICHLOROPYRIDIN-4-YL)-4-METHOXYBENZAMIDE | |  |
 | Trypanosoma brucei | PDEB1 | 5g2b | A | | N-(2-amino-2-oxoethyl)-5'-[(4aR,8aS)-3-cycloheptyl-4-oxo-3,4,4a,5,8,8a-hexahydrophthalazin-1-yl]-2'-methoxy[1,1'-biphenyl]-4-carboxamide | |  |
 | Trypanosoma brucei | PDEB1 | 5g2b | B | | N-(2-amino-2-oxoethyl)-5'-[(4aR,8aS)-3-cycloheptyl-4-oxo-3,4,4a,5,8,8a-hexahydrophthalazin-1-yl]-2'-methoxy[1,1'-biphenyl]-4-carboxamide | |  |
 | Trypanosoma brucei | PDEB1 | 5g57 | A | | (4~{a}~{S},8~{a}~{R})-2-cycloheptyl-4-[4-methoxy-3-[4-[4-(1~{H}-1,2,3,4-tetrazol-5-yl)phenoxy]butoxy]phenyl]-4~{a},5,8,8~{a}-tetrahydrophthalazin-1-one | |  |
 | Trypanosoma brucei | PDEB1 | 5g57 | B | | (4~{a}~{S},8~{a}~{R})-2-cycloheptyl-4-[4-methoxy-3-[4-[4-(1~{H}-1,2,3,4-tetrazol-5-yl)phenoxy]butoxy]phenyl]-4~{a},5,8,8~{a}-tetrahydrophthalazin-1-one | |  |
 | Trypanosoma brucei | PDEB1 | 5g5v | A | A | (4aS,8aR)-4-[4-methoxy-3-[4-[(3R)-3-oxidanylpyrrolidin-1-yl]carbonylphenyl]phenyl]-2-propan-2-yl-4a,5,8,8a-tetrahydrophthalazin-1-one | |  |
 | Trypanosoma brucei | PDEB1 | 5g5v | A | B | (4aS,8aR)-4-[4-methoxy-3-[4-[(3R)-3-oxidanylpyrrolidin-1-yl]carbonylphenyl]phenyl]-2-propan-2-yl-4a,5,8,8a-tetrahydrophthalazin-1-one | |  |
 | Trypanosoma brucei | PDEB1 | 5g5v | B | A | | |  |
 | Trypanosoma brucei | PDEB1 | 5g5v | B | B | | |  |
 | Trypanosoma brucei | PDEB1 | 5l8c | A | | 4-[5-[(4~{a}~{R},8~{a}~{S})-4-oxidanylidene-3-propan-2-yl-4~{a},5,8,8~{a}-tetrahydrophthalazin-1-yl]-2-methoxy-phenyl]-~{N}-(2-azanyl-2-oxidanylidene-ethyl)benzamide | |  |
 | Trypanosoma brucei | PDEB1 | 5l8c | B | | 4-[5-[(4~{a}~{R},8~{a}~{S})-4-oxidanylidene-3-propan-2-yl-4~{a},5,8,8~{a}-tetrahydrophthalazin-1-yl]-2-methoxy-phenyl]-~{N}-(2-azanyl-2-oxidanylidene-ethyl)benzamide | |  |
 | Trypanosoma brucei | PDEB1 | 5l8y | A | | | |  |
 | Trypanosoma brucei | PDEB1 | 5l8y | B | | 2-[(4-{5-[(4aR,8aS)-3-cycloheptyl-4-oxo-3,4,4a,5,8,8a-hexahydrophthalazin-1-yl]-2-methoxyphenyl}phenyl)formamido]-N-(2-hydroxyethyl)acetamide | |  |
 | Trypanosoma brucei | PDEB1 | 5l9h | A | | 5-[4-methoxy-3-[4-[4-(1~{H}-1,2,3,4-tetrazol-5-yl)phenoxy]butoxy]phenyl]-4,4-dimethyl-2-propan-2-yl-pyrazol-3-one | |  |